71989343603 has 8 divisors (see below), whose sum is σ = 75130034976. Its totient is φ = 68849545600.

The previous prime is 71989343509. The next prime is 71989343617. The reversal of 71989343603 is 30634398917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71989343603 - 2¹⁸ = 71989081459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71989343623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55988 + ... + 383553.

It is an arithmetic number, because the mean of its divisors is an integer number (9391254372).

Almost surely, 2^71989343603 is an apocalyptic number.

71989343603 is a deficient number, since it is larger than the sum of its proper divisors (3140691373).

71989343603 is a wasteful number, since it uses less digits than its factorization.

71989343603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446685.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 71989343603 in words is "seventy-one billion, nine hundred eighty-nine million, three hundred forty-three thousand, six hundred three".